McLaren Health Care Company Cyber Security Posture
mclaren.orgMcLaren Health Care, headquartered in Grand Blanc, Michigan, is a $7.3 billion, fully integrated health care delivery system committed to quality, evidence-based patient care and cost efficiency. The McLaren system includes 12 hospitals in Michigan, ambulatory surgery centers, imaging centers, a 640-member employed primary and specialty care physician network, commercial and Medicaid HMOs covering more than 732,838 lives in Michigan and Indiana, home health, infusion and hospice providers, pharmacy services, a clinical laboratory network and a wholly owned medical malpractice insurance company. McLaren operates Michigan’s largest network of cancer centers and providers, anchored by the Karmanos Cancer Institute, a National Cancer Institute-designated comprehensive cancer centers. McLaren has 28,000 full-, part-time and contracted employees and more than 113,000 network providers throughout Michigan, Indiana and Ohio. As part of its Graduate Medical Education (GME) program, McLaren maintains academic affiliations with medical schools at Wayne State University, Michigan State University and Central Medical University. McLaren’s seven (7) GME campuses offer 27 residencies and eight (8) fellowship programs that train over 650 future physicians annually. All GME programs at McLaren are overseen and managed centrally by the Department of Academic Affairs.
MHC Company Details
mclaren-health-care
8913 employees
30704.0
62
Hospitals and Health Care
mclaren.org
Scan still pending
MCL_2784125
In-progress
MHC Risk Score (AI oriented)Between 800 and 900
This score is AI-generated and less favored by cyber insurers, who prefer the TPRM score.
MHC Global Score.png)
McLaren Health Care Company Scoring based on AI Models
| Model Name | Date | Description | Current Score Difference | Score |
|---|---|---|---|---|
| AVERAGE-Industry | 03-12-2025 | This score represents the average cybersecurity rating of companies already scanned within the same industry. It provides a benchmark to compare an individual company's security posture against its industry peers. | N/A | Between 800 and 900 |
McLaren Health Care Company Cyber Security News & History
| Entity | Type | Severity | Impact | Seen | Url ID | Details | View |
|---|---|---|---|---|---|---|---|
| McLaren Health Care | Breach | 100 | 4 | 11/2023 | MCL120121123 | Link | |
Rankiteo Explanation : Attack with significant impact with customers data leaksDescription: McLaren Health Care (McLaren) suffered a data breach that exposed almost 2.2 million people's sensitive personal data. When the corporation saw unusual activity, it promptly hired outside forensic specialists to assist with the investigation. McLaren discovered that during the unauthorised actor's access, they were able to obtain specific data that was kept on the network. McLaren conducted a comprehensive examination of the potentially affected files as part of an ongoing inquiry to find out if any sensitive material was there. | |||||||
| McLaren Health Care | Ransomware | 100 | 4 | 8/2024 | MCL000081124 | Link | |
Rankiteo Explanation : Attack with significant impact with customers data leaksDescription: McLaren Health Care hospitals suffered a ransomware attack by the INC Ransom group, leading to the disruption of IT and phone systems. Patients' sensitive information was compromised, including Social Security numbers, health insurance details, medical records, and more. The breach affected 2,192,515 individuals, risking their personal and medical information, which may lead to fraudulent activities. The hospital experienced operational difficulties, and healthcare services were impacted, as patients were requested to bring their own medication and test information due to the loss of database access. | |||||||
| McLaren Health Care | Ransomware | 100 | 5 | 6/2025 | MCL601062325 | Link | |
Rankiteo Explanation : Attack threatening the organization's existenceDescription: McLaren Health Care suffered a data breach in July 2024 caused by the INC ransomware gang, impacting 743,000 patients. The attack was discovered on August 5, 2024, but forensic investigations were completed on May 5, 2025. The breach involved an IT and phone systems outage, affecting patient databases. Full names were exposed, but the full extent of the data breach remains unclear. This is the second major breach for McLaren, with the previous one in July 2023 by the ALPHV/BlackCat ransomware group affecting 2.2 million people. | |||||||
McLaren Health Care Company Subsidiaries
McLaren Health Care, headquartered in Grand Blanc, Michigan, is a $7.3 billion, fully integrated health care delivery system committed to quality, evidence-based patient care and cost efficiency. The McLaren system includes 12 hospitals in Michigan, ambulatory surgery centers, imaging centers, a 640-member employed primary and specialty care physician network, commercial and Medicaid HMOs covering more than 732,838 lives in Michigan and Indiana, home health, infusion and hospice providers, pharmacy services, a clinical laboratory network and a wholly owned medical malpractice insurance company. McLaren operates Michigan’s largest network of cancer centers and providers, anchored by the Karmanos Cancer Institute, a National Cancer Institute-designated comprehensive cancer centers. McLaren has 28,000 full-, part-time and contracted employees and more than 113,000 network providers throughout Michigan, Indiana and Ohio. As part of its Graduate Medical Education (GME) program, McLaren maintains academic affiliations with medical schools at Wayne State University, Michigan State University and Central Medical University. McLaren’s seven (7) GME campuses offer 27 residencies and eight (8) fellowship programs that train over 650 future physicians annually. All GME programs at McLaren are overseen and managed centrally by the Department of Academic Affairs.
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MHC Cyber Security News
McLaren Health Care restores network weeks after ransomware attack
McLaren Health Care has recovered from a ransomware attack that hit the Michigan-based health system in early August.
McLaren Health Care systems restored, experts warn of hospital cyberattacks
Operations are restored at McLaren Health Care after a cyber attack crippled systems at its 13 hospitals throughout Michigan, ...
McLaren Health Care systems restored after weeks of disruption from ransomware attack
McLaren Health Care said its technology platforms have been fully restored following an Aug. 5 ransomware attack that disrupted operations ...
4 Things to Know About the McLaren Cyberattack & Its Aftermath
McLaren Health Care fell victim to its second major cyberattack in less than a year. The Michigan-based health system has been working to restore its IT and ...
McLaren Health Care Restores IT Systems Following Ransomware Attack
McLaren Health Care has announced that it has successfully restored all IT systems affected by its August 6, 2024, ransomware attack, ...
McLaren operations restored after August cyberattack
The cyberattack, which caused a disruption on August 6, affected the health system's 13 hospitals, cancer centers, surgery centers and clinics.
McLaren Health Care experienced a criminal cyber attack
McLaren Health Care, a healthcare organization operating predominantly in the Midwestern United States, experienced a criminal cyberattack.
McLaren Health Expects IT Disruption to Last Through August
McLaren Health Care expects IT disruptions caused by a ransomware attack earlier this month to last through the end of August.
McLaren Health hit by criminal cyber attack
McLaren Health System officials confirmed the cause of a technology disruption from earlier this week was a criminal cyber attack.
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Frequently Asked Questions (FAQ) on Cybersecurity Incidents
MHC CyberSecurity History Information
Total Incidents: According to Rankiteo, MHC has faced 3 incidents in the past.
Incident Types: The types of cybersecurity incidents that have occurred include ['Ransomware', 'Breach'].
Total Financial Loss: The total financial loss from these incidents is estimated to be {total_financial_loss}.
Cybersecurity Posture: The company's overall cybersecurity posture is described as McLaren Health Care, headquartered in Grand Blanc, Michigan, is a $7.3 billion, fully integrated health care delivery system committed to quality, evidence-based patient care and cost efficiency. The McLaren system includes 12 hospitals in Michigan, ambulatory surgery centers, imaging centers, a 640-member employed primary and specialty care physician network, commercial and Medicaid HMOs covering more than 732,838 lives in Michigan and Indiana, home health, infusion and hospice providers, pharmacy services, a clinical laboratory network and a wholly owned medical malpractice insurance company. McLaren operates Michigan’s largest network of cancer centers and providers, anchored by the Karmanos Cancer Institute, a National Cancer Institute-designated comprehensive cancer centers. McLaren has 28,000 full-, part-time and contracted employees and more than 113,000 network providers throughout Michigan, Indiana and Ohio. As part of its Graduate Medical Education (GME) program, McLaren maintains academic affiliations with medical schools at Wayne State University, Michigan State University and Central Medical University. McLaren’s seven (7) GME campuses offer 27 residencies and eight (8) fellowship programs that train over 650 future physicians annually. All GME programs at McLaren are overseen and managed centrally by the Department of Academic Affairs..
Detection and Response: The company detects and responds to cybersecurity incidents through {description_of_detection_and_response_process}.
Incident Details
Incident 1: Ransomware Attack
Title: {Incident_Title}
Description: {Brief_description_of_the_incident}
Date Detected: {Detection_Date}
Date Publicly Disclosed: {Disclosure_Date}
Date Resolved: {Resolution_Date}
Type: {Type_of_Attack}
Attack Vector: {Attack_Vector}
Vulnerability Exploited: {Vulnerability}
Threat Actor: {Threat_Actor}
Motivation: {Motivation}
Incident 2: Data Breach
Title: {Incident_Title}
Description: {Brief_description_of_the_incident}
Date Detected: {Detection_Date}
Date Publicly Disclosed: {Disclosure_Date}
Date Resolved: {Resolution_Date}
Type: {Type_of_Attack}
Attack Vector: {Attack_Vector}
Vulnerability Exploited: {Vulnerability}
Threat Actor: {Threat_Actor}
Motivation: {Motivation}
Common Attack Types: The most common types of attacks the company has faced are ['Ransomware'].
Identification of Attack Vectors: The company identifies the attack vectors used in incidents through {description_of_identification_process}.
Impact of the Incidents
Incident 1: Ransomware Attack
Financial Loss: {Financial_Loss}
Data Compromised: {Data_Compromised}
Systems Affected: {Systems_Affected}
Downtime: {Downtime}
Operational Impact: {Operational_Impact}
Conversion Rate Impact: {Conversion_Rate_Impact}
Revenue Loss: {Revenue_Loss}
Customer Complaints: {Customer_Complaints}
Brand Reputation Impact: {Brand_Reputation_Impact}
Legal Liabilities: {Legal_Liabilities}
Identity Theft Risk: {Identity_Theft_Risk}
Payment Information Risk: {Payment_Information_Risk}
Incident 2: Data Breach
Financial Loss: {Financial_Loss}
Data Compromised: {Data_Compromised}
Systems Affected: {Systems_Affected}
Downtime: {Downtime}
Operational Impact: {Operational_Impact}
Conversion Rate Impact: {Conversion_Rate_Impact}
Revenue Loss: {Revenue_Loss}
Customer Complaints: {Customer_Complaints}
Brand Reputation Impact: {Brand_Reputation_Impact}
Legal Liabilities: {Legal_Liabilities}
Identity Theft Risk: {Identity_Theft_Risk}
Payment Information Risk: {Payment_Information_Risk}
Average Financial Loss: The average financial loss per incident is {average_financial_loss}.
Commonly Compromised Data Types: The types of data most commonly compromised in incidents are {list_of_commonly_compromised_data_types}.
Incident 1: Ransomware Attack
Entity Name: {Entity_Name}
Entity Type: {Entity_Type}
Industry: {Industry}
Location: {Location}
Size: {Size}
Customers Affected: {Customers_Affected}
Incident 2: Data Breach
Entity Name: {Entity_Name}
Entity Type: {Entity_Type}
Industry: {Industry}
Location: {Location}
Size: {Size}
Customers Affected: {Customers_Affected}
Response to the Incidents
Incident 1: Ransomware Attack
Incident Response Plan Activated: {Yes/No}
Third Party Assistance: {Yes/No}
Law Enforcement Notified: {Yes/No}
Containment Measures: {Containment_Measures}
Remediation Measures: {Remediation_Measures}
Recovery Measures: {Recovery_Measures}
Communication Strategy: {Communication_Strategy}
Adaptive Behavioral WAF: {Adaptive_Behavioral_WAF}
On-Demand Scrubbing Services: {On_Demand_Scrubbing_Services}
Network Segmentation: {Network_Segmentation}
Enhanced Monitoring: {Enhanced_Monitoring}
Incident 2: Data Breach
Incident Response Plan Activated: {Yes/No}
Third Party Assistance: {Yes/No}
Law Enforcement Notified: {Yes/No}
Containment Measures: {Containment_Measures}
Remediation Measures: {Remediation_Measures}
Recovery Measures: {Recovery_Measures}
Communication Strategy: {Communication_Strategy}
Adaptive Behavioral WAF: {Adaptive_Behavioral_WAF}
On-Demand Scrubbing Services: {On_Demand_Scrubbing_Services}
Network Segmentation: {Network_Segmentation}
Enhanced Monitoring: {Enhanced_Monitoring}
Incident Response Plan: The company's incident response plan is described as {description_of_incident_response_plan}.
Third-Party Assistance: The company involves third-party assistance in incident response through {description_of_third_party_involvement}.
Data Breach Information
Incident 2: Data Breach
Type of Data Compromised: {Type_of_Data}
Number of Records Exposed: {Number_of_Records}
Sensitivity of Data: {Sensitivity_of_Data}
Data Exfiltration: {Yes/No}
Data Encryption: {Yes/No}
File Types Exposed: {File_Types}
Personally Identifiable Information: {Yes/No}
Prevention of Data Exfiltration: The company takes the following measures to prevent data exfiltration: {description_of_prevention_measures}.
Handling of PII Incidents: The company handles incidents involving personally identifiable information (PII) through {description_of_handling_process}.
Ransomware Information
Incident 1: Ransomware Attack
Ransom Demanded: {Ransom_Amount}
Ransom Paid: {Ransom_Paid}
Ransomware Strain: {Ransomware_Strain}
Data Encryption: {Yes/No}
Data Exfiltration: {Yes/No}
Ransom Payment Policy: The company's policy on paying ransoms in ransomware incidents is described as {description_of_ransom_payment_policy}.
Data Recovery from Ransomware: The company recovers data encrypted by ransomware through {description_of_data_recovery_process}.
Regulatory Compliance
Incident 1: Ransomware Attack
Regulations Violated: {Regulations_Violated}
Fines Imposed: {Fines_Imposed}
Legal Actions: {Legal_Actions}
Regulatory Notifications: {Regulatory_Notifications}
Incident 2: Data Breach
Regulations Violated: {Regulations_Violated}
Fines Imposed: {Fines_Imposed}
Legal Actions: {Legal_Actions}
Regulatory Notifications: {Regulatory_Notifications}
Regulatory Frameworks: The company complies with the following regulatory frameworks regarding cybersecurity: {list_of_regulatory_frameworks}.
Ensuring Regulatory Compliance: The company ensures compliance with regulatory requirements through {description_of_compliance_measures}.
Lessons Learned and Recommendations
Incident 1: Ransomware Attack
Lessons Learned: {Lessons_Learned}
Incident 2: Data Breach
Lessons Learned: {Lessons_Learned}
Incident 1: Ransomware Attack
Recommendations: {Recommendations}
Incident 2: Data Breach
Recommendations: {Recommendations}
Key Lessons Learned: The key lessons learned from past incidents are {list_of_key_lessons_learned}.
Implemented Recommendations: The company has implemented the following recommendations to improve cybersecurity: {list_of_implemented_recommendations}.
References
Additional Resources: Stakeholders can find additional resources on cybersecurity best practices at {list_of_additional_resources}.
Investigation Status
Incident 1: Ransomware Attack
Investigation Status: {Investigation_Status}
Incident 2: Data Breach
Investigation Status: {Investigation_Status}
Communication of Investigation Status: The company communicates the status of incident investigations to stakeholders through {description_of_communication_process}.
Stakeholder and Customer Advisories
Incident 1: Ransomware Attack
Stakeholder Advisories: {Stakeholder_Advisories}
Customer Advisories: {Customer_Advisories}
Incident 2: Data Breach
Stakeholder Advisories: {Stakeholder_Advisories}
Customer Advisories: {Customer_Advisories}
Advisories Provided: The company provides the following advisories to stakeholders and customers following an incident: {description_of_advisories_provided}.
Initial Access Broker
Incident 1: Ransomware Attack
Entry Point: {Entry_Point}
Reconnaissance Period: {Reconnaissance_Period}
Backdoors Established: {Backdoors_Established}
High Value Targets: {High_Value_Targets}
Data Sold on Dark Web: {Yes/No}
Incident 2: Data Breach
Entry Point: {Entry_Point}
Reconnaissance Period: {Reconnaissance_Period}
Backdoors Established: {Backdoors_Established}
High Value Targets: {High_Value_Targets}
Data Sold on Dark Web: {Yes/No}
Monitoring and Mitigation of Initial Access Brokers: The company monitors and mitigates the activities of initial access brokers through {description_of_monitoring_and_mitigation_measures}.
Post-Incident Analysis
Incident 1: Ransomware Attack
Root Causes: {Root_Causes}
Corrective Actions: {Corrective_Actions}
Incident 2: Data Breach
Root Causes: {Root_Causes}
Corrective Actions: {Corrective_Actions}
Post-Incident Analysis Process: The company's process for conducting post-incident analysis is described as {description_of_post_incident_analysis_process}.
Corrective Actions Taken: The company has taken the following corrective actions based on post-incident analysis: {list_of_corrective_actions_taken}.
Additional Questions
General Information
Ransom Payment History: The company has {paid/not_paid} ransoms in the past.
Last Ransom Demanded: The amount of the last ransom demanded was {last_ransom_amount}.
Last Attacking Group: The attacking group in the last incident was {last_attacking_group}.
Incident Details
Most Recent Incident Detected: The most recent incident detected was on {most_recent_incident_detected_date}.
Most Recent Incident Publicly Disclosed: The most recent incident publicly disclosed was on {most_recent_incident_publicly_disclosed_date}.
Most Recent Incident Resolved: The most recent incident resolved was on {most_recent_incident_resolved_date}.
Impact of the Incidents
Highest Financial Loss: The highest financial loss from an incident was {highest_financial_loss}.
Most Significant Data Compromised: The most significant data compromised in an incident was {most_significant_data_compromised}.
Most Significant System Affected: The most significant system affected in an incident was {most_significant_system_affected}.
Response to the Incidents
Third-Party Assistance in Most Recent Incident: The third-party assistance involved in the most recent incident was {third_party_assistance_in_most_recent_incident}.
Containment Measures in Most Recent Incident: The containment measures taken in the most recent incident were {containment_measures_in_most_recent_incident}.
Data Breach Information
Most Sensitive Data Compromised: The most sensitive data compromised in a breach was {most_sensitive_data_compromised}.
Number of Records Exposed: The number of records exposed in the most significant breach was {number_of_records_exposed}.
Ransomware Information
Highest Ransom Demanded: The highest ransom demanded in a ransomware incident was {highest_ransom_demanded}.
Highest Ransom Paid: The highest ransom paid in a ransomware incident was {highest_ransom_paid}.
Regulatory Compliance
Highest Fine Imposed: The highest fine imposed for a regulatory violation was {highest_fine_imposed}.
Most Significant Legal Action: The most significant legal action taken for a regulatory violation was {most_significant_legal_action}.
Lessons Learned and Recommendations
Most Significant Lesson Learned: The most significant lesson learned from past incidents was {most_significant_lesson_learned}.
Most Significant Recommendation Implemented: The most significant recommendation implemented to improve cybersecurity was {most_significant_recommendation_implemented}.
References
Most Recent Source: The most recent source of information about an incident is {most_recent_source}.
Most Recent URL for Additional Resources: The most recent URL for additional resources on cybersecurity best practices is {most_recent_url}.
Investigation Status
Current Status of Most Recent Investigation: The current status of the most recent investigation is {current_status_of_most_recent_investigation}.
Stakeholder and Customer Advisories
Most Recent Stakeholder Advisory: The most recent stakeholder advisory issued was {most_recent_stakeholder_advisory}.
Most Recent Customer Advisory: The most recent customer advisory issued was {most_recent_customer_advisory}.
Initial Access Broker
Most Recent Entry Point: The most recent entry point used by an initial access broker was {most_recent_entry_point}.
Most Recent Reconnaissance Period: The most recent reconnaissance period for an incident was {most_recent_reconnaissance_period}.
Post-Incident Analysis
Most Significant Root Cause: The most significant root cause identified in post-incident analysis was {most_significant_root_cause}.
Most Significant Corrective Action: The most significant corrective action taken based on post-incident analysis was {most_significant_corrective_action}.
What Do We Measure?
Every week, Rankiteo analyzes billions of signals to give organizations a sharper, faster view of emerging risks. With deeper, more actionable intelligence at their fingertips, security teams can outpace threat actors, respond instantly to Zero-Day attacks, and dramatically shrink their risk exposure window.
These are some of the factors we use to calculate the overall score:
Identify exposed access points, detect misconfigured SSL certificates, and uncover vulnerabilities across the network infrastructure.
Gain visibility into the software components used within an organization to detect vulnerabilities, manage risk, and ensure supply chain security.
Monitor and manage all IT assets and their configurations to ensure accurate, real-time visibility across the company's technology environment.
Leverage real-time insights on active threats, malware campaigns, and emerging vulnerabilities to proactively defend against evolving cyberattacks.
